Paper container machine



Filed Feb. 27, 1952 5 Sheets-Sheet 1 ATTORNEY May 15, 1934. Q ANGELL 1,958,413

PAPER CONTAINER MACHINE ATTORNEY May 15, 1934. E. c. ANGELL 1,958,413

PAPER CONTAINER MACHINE Filed Feb. 27. 1932 5 Sheets-Sheet 5 age ATTORNEY y 5, 1934. E. c. ANGELL 1,958,413

PAPER CONTAINER MACHINE Filed Feb. 27, 1932 5 Sheets-Sheet 4 wENTOR ngaZZ I ATTORNEY y 1934. E. c. ANGELL PAPER CONTAINER MACHINE 5 Sheets-Sheet 5 Filed Feb. 27, 1952 ATTO RNEY Patented May 15, 1934 PATENT OFFICE PAPER CONTAINER MACHINE Edward 0. Angel], East Orange, N. J.; Rose Angell executrix of said Edward C. Angell, de-

ceased Application February 27, 1932, Serial No. 595,454

12 Claims.

This invention relates to machines for forming containers of paper or the like, and particularly to means for causing a blank of paper to be made into the form of a substantially tubular body, with lapping portions that are caused to adhere by a suitable adhesive, and especially relates to an arrangement where the blank is caused to extend twice around, forming a vessel with double side walls, and in which these walls are secured by the adhesive at one or several locations.

The object of the invention is to provide improved mechanism for this purpose in which special means are provided for gripping the end of the blank by a mandrel, in connection with a shell inside of which the mandrel is rotated.

A further object of the invention is to provide special means for the shell surrounding the mandrel, that can open to permit ejectment of the body when finished.

Another object of the invention is to provide improved means for applying moisture or water to the blank that contains one or more dry bands or portions of a gum or adhesive.

In the accompanying drawings showing one embodiment of my invention,

Fig. 1 is a plan view of such parts of the machine as relate to the present invention.

Fig. 2 is a side elevation as seen from the right of Fig. 1, certain parts being in section.

Fig. 3 is a cross section on the line 33 of Fig. 1.

Fig. 4 is a cross section on the line 44 of Fig. 1.

Fig. 5 shows enlarged a section through the mandrel and adjacent parts.

Fig. 6 shows enlarged a cross section on the line 66 of Fig. 1.

Fig. 7 is a plan view enlarged of the parts shown at the right in Fig. 6.

Figs. 8, 9, and 10 show enlarged sections through the mandrel and adjacent parts, in different positions of these parts.

Fig. 11 is a partial section showing the ejector and adjacent parts.

As shown in the plan view in Fig. 1, on a suitable base 2 is mounted a driving shaft 3, that may be the main shaft of the machine. In machines of this character it is usual to form a flat paper blank in a finished body of tubular form, either cylindrical or conical, and then the body is advanced into a carrier, by which the body is conveyed to other mechanism on the machine, where a bottom disc is inserted, and in some instances is secured by a special operation. In this machine a carrier is provided in the nature of an endless chain 4 having a kind of receptacle or box 5, having a conical bore to receive a conical body 8'7. By suitable mechanism not herein set forth this chain is intermittently advanced to bring the series of boxes 5 opposite a mandrel 6, (see Fig. 4). This mandrel carries a shaft 7, that rotates with the mandrel and which shaft slides in the bore 8 of the mandrel. The mandrel has a reduced sleeve extension 9 that rotates in a bearing 10, carried by a block 1 supported on the base. On this extension is secured a gear 11 to rotate the mandrel, which gear meshes with a gear 12 on a cross shaft 13, the latter being turned by driving shaft 3 that carries a mutilated angle gear 14 that engages an angle gear 15 on the cross shaft 13, by which means the cross shaft 13 will be given one revolution by the teeth on this gear 14, as gear 15 through its circumference contains the same number of teeth as those on the segment of the gear 14. By these means the cross shaft and the mandrel will be intermittently rotated, and as the gear 11 on the mandrel contains one-half the number of teeth as the gear 12 on the cross shaft, therefore the main shaft 3 will first turn the mandrel twice around, and then the space between the teeth on the mutilated gear will provide a rest for the mandrel for the balance of the rotation of the main shaft, during which period suitable means will eject the finished body from the mandrel into the carrier box.

This mandrel is surrounded by a casing, that is in sections to move away from the mandrel, to permit removal of the formed body. As shown in Figs. 6 and 8, the casing comprises two shells l6 and 17 pivoted on the ends of arms 18 and 19, which latter are pivoted at 20 and 21, on a bearing bracket 22. These arms are normally drawn inward by a cross spring 23, into proximity to the mandrel, and these arms engage slides 24 and 25 pivoted thereto, that carry rollers 26 and 27 on their inner ends, which rollers are pressed against a wedge block 28, by the spring 23, (see Fig. 7). These rollers when engaging the irmer end of this wedge, that is straight, will hold the shells a short distance removed from the mandrel, it being understood that the shells have a conical bore corresponding to the mandrel. Means are provided to advance the wedge 28 when it is desired to eject the body, and in Fig. 1 is shown a lever 29 that engages a slide 30 fastened to the wedge, which lever is swung by a bar 31 carrying a roller 32 that runs in a cam 33 fastened on the shaft 3.

The blank of paper 34, is of arc shape of a form to be wrapped around the mandrel twice with the edges lapped. The blank is placed on a suitable support with guide rollers 36, that permit the end of the blank to be inserted at an open portion between the ends 37 and 38 of the casing shell, (see Fig. 9). A guide is provided opposite the mandrel at this opening, shown as a roller 39' carried by an arm 40 pivoted at 41 on a suitable bracket. To rock this arm I provide a lever 42, (see Fig. 6) pivoted at 43 on the support 22, with a roller 44 on this lever that rotates on a cam 45 carried by a cross shaft 46, (see Fig. 1). The latter is driven from the main shaft3 by angle gears 47 and 48. The arm .40 has an adjusting bolt 49 to vary its connection with the lever 42, that will provide for different sizes of mandrels. The roller 39 will be supported just below the mandrel to permit entrance of the blank end, and when the blank is to be ejected the roller is swung down as indicated in Fig. 10 by a drop in the cam 45. This cam 45 is timed with the shaft 3 to make one relative rotation, while the mandrel 6 is given two rotations to a partial rotation of the shaft 3 by a said connecting gear.

The blank 34 is shown provided with a dry gum band 50 at an intermediate part and a second gummed band 51 at the outer end portion (see Fig. 1) Means are provided for moistening these two bands as the blank is drawn in between the mandrel and casing and wrapped around the mandrel. On a frame 52 is mounted a moistning roller 53 that by bars 54 is slidable in sockets 55 in a block 56 on the base, and coil springs 57 in these sockets hold the frame in an upper position with the moistening roller located a short distance above the guide plate 35, (see Fig. 6). A shaft 77 in thisframe carries a gear 58 that meshes with a gear 59 on the roll 53.. A short shaft 60 on the base carries a gear 61 that meshes with a gear 62 on a shaft 63 that turns inside of the cross shaft 13. The shaft 60 engages the said shaft 77 by a universal Joint 64. The said shaft 63 is driven from the main shaft 3 at its rear end by gears 65 and 66. The shaft 77 carries a cam 67 with opposite projections 68 and 69, that engage a roller '70 on the bottom of the guide plate 35, (see Fig. 8), once in each rotation of this cam; the frame will thereby be depressed to bring the moistening roller against the paper blank on the guide plate for a short period, and then the frame is moved upward by the coil springs that press the cam against this roller.

Means are provided in the mandrel 6 for engaging the end of the blank, and as shown the mandrel is provided with a socket 71 in the mandrel in which slides a block '72, that carries a 'set of studs or pins 73 projecting out, adapted to be extended slightly beyond the periphery of the mandrel to engage the blank. This block is caused to slide in the mandrel slot by means of a roller 74 carried by the shaft 7, that engages a slot 79 in the block. This block 72 connects through shaft 7 with a cam strap 75, (see Fig. 4), carrying a cam roller 76 engaging a cam 78 mounted on the shaft 3.

This shaft '7 that rotates with the mandrel and its extension 9, through gear 12, is provided with a slotted head 80, that carries a loose ring 81 in such slot, which ring is engaged by the forked end 82 of cam strap 75. The latter carries the roller 76, that engages the cam 78 fast on the shaft, 3. This will permit endwise movement of shaft 7 while it is being rotated by gear 11, and by this means the block will be advanced, and the pins caused to project through the apertured plate 85 of the mandrel, and the pins withdrawn when the shaft 7 is again moved forward. These parts are so timed that the pins are advanced when the blank is inserted and the mandrel in the position of 10. When the blank has been wrapped around the mandrel the pins are withdrawn to permit the body to be ejected.

Means are provided for ejecting the finished blank from the mandrel, best shown in Fig. 4. The slide 30 that opens the casing shells 16 and 17, carries a forked frame 86, that is normally just at the rear of the mandrel 6 (see Fig. 4), but when slide 30 is advanced to open the casing, this fork will engage the formed body 87 on the mandrel and shift it into the carrier box 5 on the chain conveyor, (see Fig. 5).

In the operation of the device the mandrel is arrested in the position indicated in Fig. 10 and the block in the mandrel will hold the pins retracted, and the blank 34 is now fed in with the roller 39 in the raised position. The block will now be advanced and cause the pins to penetrate and grip the blank and at the same time the mandrel is caused to rotate, that will result in the blank being wrapped around the mandrel, it being understood that the roller 39 as soon as this operation starts, will move downward because of the cam 90 leaving the roll 44. The mandrel will make two turns to one turn of the cam 45 and the latter will have its rise 91 again bring the roller 39 against the blank being wrapped so that the rear end containing the gummed band 51 will be pressed against the roll body, inside of which is the gummed band 50 at the middle part. It will be understood that as the blank is first engaged by the pins the moistening roller 53 will be brought down to moisten the gummed band 50 of the blank; and at the latter part of the advance of the blank this moistening roller will be again pressed on the blank to moisten the rear band 51. At the conclusion of the second rotation of the mandrel it will be arrested and the ejector arm 86 will now be advanced to move the body 87 off of the mandrel into the box 5 on the chain; but the arms 18 and 19 will swing open by reason of advance of the wedge block 28 from its cam connection, so that the casing sections 16 and 17 will be opened to permit this ejectment of the body. This section will then return ready for the feeding of the next blank of the mandrel.

What I claim is:

1. In a container body forming machine, a'

mandrel provided with a slot leading in from one face, a block slidable in the mandrel face slot and provided with a series of pointed studson its outer face adapted to engage the inner side of a blank wrapped around the mandreLa casing enclosing the mandrel with an open portion to admit the end of the blank between the mandrel and the casing, means for opening and closing the casing, and means forsliding the block in and out of the mandrel slot.

2. In a container body forming machine, a mandrel provided with a slot leading in from one face, a block slidable in the mandrel slot and provided with a series of pointed studs on its outer face adapted to engage the inner side of a blank wrapped around the mandrel, a casing enclosing the mandrel with an open portion to admit one end of a blank between the mandrel and the casing, means for opening and closing of the mandrel slot, and means for rotating themandrel.

mandrel provided with a slot leading in from one face, a bl0ck slidable in the mandrel slot and provided with a series of pointed studs on its outer face adapted to engage the inner side of a,

blank wrapped around the mandrel, a casing enclosing the mandrel with an open portion to admit the end of the blank between the mandrel and the casing, means for sliding the block in and out of the mandrel slot to engage a blank on the mandrel, means for rotating the mandrel to wrap a blank around the mandrel, and a guide for the blank adjacent the mandrel at the open portion of the casing.

4. In a container body forming machine, a mandrel provided with a slot leading in from one face, a block slidable in the mandrel slot and provided with a series of pointed studs on its outer face adapted to engage the inner side of a blank wrapped around the mandrel, a casing enclosing the mandrel with an open portion to admit the end of the blank between the mandrel and the casing, means for sliding the block in and out of the mandrel slot, means for rotating the mandrel to wrap the blank around the mandrel, a guide for the blank adjacent the open portion of the casing, and means for shifting the guide to press the blank against said studs.

5. In a container body forming machine, a mandrel provided with a slot leading in from one face, a block slidable in the mandrel slot and provided with a series of pointed studs on its outer face adapted to engage the inner side of a blank wrapped around the mandrel, a casing enclosing the mandrel with an open portion to admit one end of a blank between the mandrel and the casing, means for opening and closing the casing, means for sliding the block in and out of the mandrel slot, means for rotating the mandrel, a guide for the blank adjacent the casing open portion, and means for shifting the guide to press the blank against the studs.

6. In a container forming device, a mandrel, means for wrapping a blank around the mandrel to form a body, a casing enclosing the mandrel with an open portion to admit the end of the blank between the mandrel and the casing, means to eject the body from the mandrel, means for opening and closing the casing to permit ejectment of the formed body, means for rotating the mandrel to wrap the blank around the mandrel between the casing and the mandrel, a guide for the blank at the open portion of the casing, and means for shifting the guide to permit ejectment of the body.

7. In a container body forming device, a mandrel provided with a slot leading in from one face, a block slidable in the mandrel slot and provided with a series of pointed studs on its outer face:

adapted to engage the inner side of a blank wrapped around the mandrel, means for sliding the block in and out of the mandrel slot to engage a blank on the mandrel, a casing enclosing the mandrel with an open portion to admit the end of the blank between the mandrel and the casing, means to eject the body from the mandrel, means for closing and opening the casing to permit entrance of the blank and ejectment of the formed body, means for rotating the mandrel to wrap the blank around the mandrel between the casing and mandrel with one end of the blank held on the mandrel by the said studs on outward movement of the block, a guide for the blank adjacent-the mandrel at the open'portion v I of .the casing, and means for shifting the-guide 3. In a container body forming machine, a

to permit entrance of the blank and ejectment of the formed body, 1 I A Y 8. In a container body forming machine, means .for moistening and sealinga blank: that is provided with adrygummed band at one 'en'd'and ,also provided with a dry gummedband at the *mandrel makes its subsequent revolution to thereby engage the end gummed band on the blank and then the device is again retracted, a guide for the blank adjacent the mandrel, means for shifting the guide to press the blank against the mandrel at the initial part of the blank rolling operation and then retracting the guide to press the blank at its lapped gummed band portion against the mandrel, and again -causing retraction of the guide.

9. In a container body forming machine, means for moistening and sealing a blank that is provided with a dry'gummed band at one end and also provided with a dry gummed band at the middle portion on the same side of I the band, which means includes a mandrel, means for wrapping the blank twice around the mandrel, a moistening roll, a support for the blank as advanced to the mandrel, means for shifting the roll relative to the support in timed relation to the rotation of the mandrel whereby the roll will first engage the blank at its middle gummed band and is then retracted and the roll is again shifted as the mandrel makes its subsequent revolution to thereby engage the end gummed band on the blank and then the roll is again retracted, a guide for the blank adjacent the mandrel, means for shifting the guide to press the blank against the mandrel at the initial part of the blank rolling operation and then retracting the guide to press the blank at its lapped gummed band portion against the mandrel, and again causing retracthe blank twice around the mandrel, a moistening device, a support for the blank as advanced to the mandrel, means for shifting the moisten ing device relative to the support in timed rel tion to the rotation of the mandrel whereby t e moistening device will first engage the blank at its middle gummed band and is then retracted and thereupon such device is again shifted as the mandrel makes its subsequent rotation to thereby engage the end gummed band on the blank and then the device is again retracted, a

guide roll for the blank adjacent the mandrel at the casing opening, means for shifting the guide roll to press the blank against the mandrel at the initial part of the blank rolling operation and then retracting the guide roll and subsequently shifting the guide to press the blank'at its lapped gummed band portion against themandrel, and again causing retraction of theguide roll.

11. In a container body forming machine,

' means for moistening and sealing a blank that is provided with a dry gummed band'at one end and also provided with a dry gummed band at the middle portion on the same side of the blank, which means includes a mandrel, a casing enclosing the mandrel with an open portion to admit the end of the blank, means for wrapping the blank twice around the mandrel, a moistenthe blank adjacent the mandrel at the casing opening, means for shifting the guide roll to press the blank against the mandrel at the initial part of the blank rolling operation and then retracting the guide roll and subsequently shifting the guide roll to press the blank at its lapped gummed end portion against the mandrel, and again causlng retraction of the guide roll.

'12." In a container body forming machine, means for moistening and sealing a blank that is provided with a dry gummed band at one end and also provided with a drygummed band at the middle portion on the same'side' of the blank,

which means includes a mandrel, a casing enclosing the mandrel with an open portion to admit the blank, means for closing and'opening the casing to permit entrance of the blank and ejectment of the same, means for wrapping the blank twice around the mandrel, a moistening roll, a support for the roll as advanced to the mandrel, means for shifting the moistening roll relative to said support in timed relation to the rotation of. the mandrel whereby said moistening roll will first engage the blank at its middle gummed band and is then retracted and thereupon said roll is again shifted as the mandrel makes its subsequent revolution to thereby engage the gummed band on the blank end portion and then the roll is again retracted, a guide roll for the blank adjacent the mandrel at the casing opening, means for shifting the guide roll to press the blank against the mandrel at the initial part of the blank rolling operation and then retracting the guide roll and subsequently shitting the guide roll to press the blank at its lapped gummed portion at the end against the mandrel, and again causing retraction of the guide roll.

EDWARD C. ANGELL. 

